pivot

Abstract

A rotating shaft includes a base, a rotating unit, a translational slider, and a rotating foot pad. The rotating unit includes a rotating member and a first connecting protrusion. The rotating member is disposed on the base and can rotate relative to the base about a first rotation axis parallel to a left-right direction between a first position and a second position. The first connecting protrusion is linked to the rotating member and can rotate relative to the base about a second rotation axis parallel to the left-right direction. When the rotating member is in the first position, the translational slider is in a third position, and the rotating foot pad is in a retracted position, with one foot pad of the rotating foot pad relatively close to the base. When the rotating member rotates to the second position, the first connecting protrusion drives the translational slider to slide along a front-back direction to a fourth position, thereby driving the rotating foot pad to rotate to a supported position, with the foot pad of the rotating foot pad relatively away from the base.

Claims

1. A rotating shaft, comprising: a base; a rotating unit including a rotating member and a first connecting protrusion, the rotating member being disposed on the base and rotatable relative to the base about a first rotation axis parallel to a left-right direction between a first position and a second position, the first connecting protrusion being linked with the rotating member and rotatable relative to the base about a second rotation axis parallel to the left-right direction; A translational slider is disposed on the base and can slide relative to the base between a third position and a fourth position in a front-back direction. The translational slider has a first concave rail and a second concave rail formed recessed in the left-right direction. The first connecting protrusion of the rotating unit is slidably disposed in the first concave rail. The second concave rail extends in a vertical direction. A rotating foot pad is pivotally disposed on the base and can rotate relative to the base about a third rotation axis parallel to the left-right direction between a closed position and a supported position. The rotating foot pad has a second connecting protrusion located at one end and slidably disposed in the second concave rail, a foot pad body located at the other end, and a pivot portion located between the second connecting protrusion and the foot pad body and pivotally connected to the base. When the rotating component is in the first position, the translational slider is in the third position, and the rotating foot pad is in the retracted position, the foot pad body of the rotating foot pad is relatively close to the base; when the rotating component rotates to the second position, the translational slider is driven to slide in the front-back direction to the fourth position through the first connecting protrusion, so as to drive the rotating foot pad to rotate to the supported position, and the foot pad body of the rotating foot pad is relatively away from the base.

2. The shaft as described in claim 1, wherein, During the rotation of the rotating component relative to the base between the first position and the second position, it also passes through a transition position. The first concave rail has a connected drive rail and an arc-shaped rail. The radius of curvature of the arc-shaped rail is equal to the distance between the first connecting protrusion and the second rotation axis. When the rotating component is in the first position, the translational slider is in the third position, and the rotating foot pad is in the retracted position. When the rotating component rotates from the first position to the transition position, the first connecting protrusion slides toward the drive rail and returns to the junction of the drive rail and the arc-shaped rail, thereby driving the translational slider to slide along the front-back direction to the fourth position, so as to drive the rotating foot pad to rotate to the upright position. When the rotating component rotates from the transition position to the second position, the first connecting protrusion slides along the arc-shaped rail, the translational sliding component does not slide, and the rotating foot pad does not rotate.

3. The shaft as described in claim 2, wherein, The drive rail is straight and tangent to the curved rail.

4. The shaft as described in claim 1, wherein, The base has a plurality of guide grooves recessed in the left-right direction and extending in the front-back direction, and the translational slider has a plurality of guide protrusions slidably disposed in the plurality of guide grooves.

5. The shaft as described in claim 1, wherein, The rotating unit also includes a rotating rod that is linked to the rotating member and can rotate relative to the base about the second rotation axis. The rotating rod has the first connecting protrusion located at its end.

6. The shaft as described in claim 5, wherein, The rotating unit also includes a transmission gear set connected between the rotating member and the rotating rod. The transmission gear set includes a driving gear and a driven gear. The driving gear is sleeved on the rotating member and rotates synchronously with the rotating member. The driven gear is disposed on the base and meshes with the driving gear. The rotating rod is disposed on the driven gear and rotates synchronously with the driven gear.

7. The shaft as described in claim 1, wherein, The rotating foot pad has a first foot pad portion relatively close to the pivot portion and a second foot pad portion relatively far from the pivot portion; when the rotating foot pad is in the retracted position, the position of the first foot pad portion is lower than that of the second foot pad portion; when the rotating foot pad is in the upright position, the position of the second foot pad portion is lower than that of the first foot pad portion.

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